According to this programme, Capron’s battery opened on El Caney and Grimes’s battery opened on the pagoda-like block-house of San Juan. The range from El Poso was exactly 2,400 yards, and the firing, as was discovered later, was not very effective. The battery used black powder, and, as a result, after each explosion the curtain of smoke hung over the gun for fully a minute before the gunners could see the San Juan trenches, which was chiefly important because for a full minute it gave a mark to the enemy. The hill on which the battery stood was like a sugar-loaf. Behind it was the farm-house of El Poso, the only building in sight within a radius of a mile, and in it were Cuban soldiers and other non-combatants. The Rough Riders had been ordered to halt in the yard of the farm-house and the artillery horses were drawn up in it, under the lee of the hill. The First and Tenth dismounted Cavalry were encamped a hundred yards from the battery along the ridge. They might as sensibly have been ordered to paint the rings in a target while a company was firing at the bull’s-eye. To our first twenty shots the enemy made no reply; when they did it was impossible, owing to their using smokeless powder, to locate their guns. Their third shell fell in among the Cubans in the block-house and among the Rough Riders and the men of the First and Tenth Cavalry, killing some and wounding many. These casualties were utterly unnecessary and were due to the stupidity of whoever placed the men within fifty yards of guns in action.

A quarter of an hour after the firing began from El Poso one of General Shafter’s aides directed General Sumner to advance with his division down the Santiago trail, and to halt at the edge of the woods.

“What am I to do then?” asked General Sumner.

“You are to await further orders,” the aide answered.

As a matter of fact and history this was probably the last order General Sumner received from General Shafter, until the troops of his division had taken the San Juan hills, as it became impossible to get word to General Shafter, the trail leading to his head-quarters tent, three miles in the rear, being blocked by the soldiers of the First and Tenth dismounted Cavalry, and later, by Lawton’s division. General Sumner led the Sixth, Third, and Ninth Cavalry and the Rough Riders down the trail, with instructions for the First and Tenth to follow. The trail, virgin as yet from the foot of an American soldier, was as wide as its narrowest part, which was some ten feet across. At places it was as wide as Broadway, but only for such short distances that it was necessary for the men to advance in column, in double file. A maze of underbrush and trees on either side was all but impenetrable, and when the officers and men had once assembled into the basin, they could only guess as to what lay before them, or on either flank. At the end of a mile the country became more open, and General Sumner saw the Spaniards intrenched a half-mile away on the sloping hills. A stream, called the San Juan River, ran across the trail at this point, and another stream crossed it again two hundred yards farther on. The troops were halted at this first stream, some crossing it, and others deploying in single file to the right. Some were on the banks of the stream, others at the edge of the woods in the bushes. Others lay in the high grass which was so high that it stopped the wind, and so hot that it almost choked and suffocated those who lay in it.

The enemy saw the advance and began firing with pitiless accuracy into the jammed and crowded trail and along the whole border of the woods. There was not a single yard of ground for a mile to the rear which was not inside the zone of fire. Our men were ordered not to return the fire but to lie still and wait for further orders. Some of them could see the rifle-pits of the enemy quite clearly and the men in them, but many saw nothing but the bushes under which they lay, and the high grass which seemed to burn when they pressed against it. It was during this period of waiting that the greater number of our men were killed. For one hour they lay on their rifles staring at the waving green stuff around them, while the bullets drove past incessantly, with savage insistence, cutting the grass again and again in hundreds of fresh places. Men in line sprang from the ground and sank back again with a groan, or rolled to one side clinging silently to an arm or shoulder. Behind the lines hospital stewards passed continually, drawing the wounded back to the streams, where they laid them in long rows, their feet touching the water’s edge and their bodies supported by the muddy bank. Up and down the lines, and through the fords of the streams, mounted aides drove their horses at a gallop, as conspicuous a target as the steeple on a church, and one after another paid the price of his position and fell from his horse wounded or dead. Captain Mills fell as he was giving an order, shot through the forehead behind both eyes; Captain O’Neill, of the Rough Riders, as he said, “There is no Spanish bullet made that can kill me.” Steel, Swift, Henry, each of them was shot out of his saddle.

Hidden in the trees above the streams, and above the trail, sharp-shooters and guerillas added a fresh terror to the wounded. There was no hiding from them. Their bullets came from every side. Their invisible smoke helped to keep their hiding-places secret, and in the incessant shriek of shrapnel and the spit of the Mausers, it was difficult to locate the reports of their rifles. They spared neither the wounded nor recognized the Red Cross; they killed the surgeons and the stewards carrying the litters, and killed the wounded men on the litters. A guerilla in a tree above us shot one of the Rough Riders in the breast while I was helping him carry Captain Morton Henry to the dressing-station, the ball passing down through him, and a second shot, from the same tree, barely missed Henry as he lay on the ground where we had dropped him. He was already twice wounded and so covered with blood that no one could have mistaken his condition. The surgeons at work along the stream dressed the wounds with one eye cast aloft at the trees. It was not the Mauser bullets they feared, though they passed continuously, but too high to do their patients further harm, but the bullets of the sharp-shooters which struck fairly in among them, splashing in the water and scattering the pebbles. The sounds of the two bullets were as different as is the sharp pop of a soda-water bottle from the buzzing of an angry wasp.

For a time it seemed as though every second man was either killed or wounded; one came upon them lying behind the bush, under which they had crawled with some strange idea that it would protect them, or crouched under the bank of the stream, or lying on their stomachs and lapping up the water with the eagerness of thirsty dogs. As to their suffering, the wounded were magnificently silent, they neither complained nor groaned nor cursed.

“I’ve got a punctured tire,” was their grim answer to inquiries. White men and colored men, veterans and recruits and volunteers, each lay waiting for the battle to begin or to end so that he might be carried away to safety, for the wounded were in as great danger after they were hit as though they were in the firing line, but none questioned nor complained.